Parents reacted with horror, with many questioning how such an app could be available.

Now Google has pulled the android app from its Play store.

Confirming it had now been suspended from Google Play, a Google spokesperson said: "We have a set of policies designed to provide a great experience for users and developers and we act quickly to remove apps from Google Play that violate those policies."

The app - titled 'call Blaze and the Monster Machines 2018' and available on Android devices - then ends with a chilling laugh.

The NSPCC has urged parents to make online safety a priority, particularly with children having received new devices for Christmas.

Tony Stower, head of child safety online at the NSPCC, said: “It’s vital that every parent who has bought an internet-connected device sets up parental controls to help protect their children from online risks.

"It’s also a good idea for parents to have regular conversations with their children about staying safe online and how to report something that upsets them.”